MCQ – 88294

Question

A 50-year-old man underwent heart transplantation for low outputheart failure that was unresponsive to medical treatment. The affected heart at autopsy is shown in the image. It weighs 950 g (normal up to 350 g) and shows no evidence of coronary artery atherosclerosis. Histologically, the myocardium demonstrates hypertrophic myocytes and foci of myocardial fibrosis but no evidence of inflammation or myofiberdisarray. Which of the following is the most likely diagnosis?


A.

Cardiac amyloidosis

B.

Dilated cardiomyopathy

C.

Hypertrophic cardiomyopathy

D.

Restrictive cardiomyopathy

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